Photo to KB

Convert image formats

Choose an output format to apply it in the image tool.

Free, no account · Photos stay on your device

Choose a format, then select your photos. The default limit is 500KB; you can change the KB and dimension settings in the tool.

HEIC · WebP · PNG → JPG

For a site that accepts JPG

Transparent areas become white. The image is saved with quality adjustment.

Start converting to JPG

HEIC · JPG · PNG → WebP

For photos you plan to use on the web

Keeps transparency and uses quality adjustment. Check the formats accepted by your destination.

Start converting to WebP

HEIC · JPG · WebP → PNG

For keeping a transparent background

Converting a JPG does not add transparency or restore lost image detail.

Start converting to PNG

How conversion works

  1. Select one photo or switch to multiple photos.
  2. Check the target KB and output format. Set a width or height in pixels if needed.
  3. Run compression, check the resulting format and dimensions, then save.

Before you start

Supports JPG, JPEG and still PNG, WebP and single-photo HEIC. Up to 10 files, 20MB (20,000,000 bytes) and 24MP per file, 100MB total. APNG, animated WebP, GIF, HEIC sequences, multi-photo HEIC and PDF are unsupported. Large photos may exceed device memory. HEIC supports files containing one still photo. Auto output is JPG; PNG and WebP are also available. The decoder loads on your first HEIC selection, which may take a moment. HDR and camera metadata are not retained; check the result’s colors and orientation.

Dimensions may shrink to meet the KB limit. If fixed dimensions and the KB limit cannot both be met, the tool asks you to adjust the settings. Your original file is kept.

Files are not uploaded to a server. Optional analytics preferences are available at the bottom of the image tool.